.NET Framework End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all .NET Framework versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
✓.NET Framework 4.8.1 is actively supported. Next EOL: version 4.6.2 on January 12, 2027.
📅 Get reminded before .NET Framework 4.6.2 reaches EOL on January 12, 2027 — alerts 90, 30 & 7 days out.
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build. Methodology →
Release Cycle Timeline
■ EOL
■ Warning
■ Active
┊ Today
All Versions
Version
Latest Release
Release Date
EOL Date
Days
Status
3.5-sp1
—
Nov 19, 2007
Jan 9, 2029
931 days remaining
Active
4.0
—
Apr 12, 2010
Jan 12, 2016
3815 days past EOL
EOL
4.5
—
Aug 15, 2012
Jan 12, 2016
3815 days past EOL
EOL
4.5.1
—
Oct 17, 2013
Jan 12, 2016
3815 days past EOL
EOL
4.5.2
—
May 5, 2014
Apr 26, 2022
1519 days past EOL
EOL
4.6
—
Jul 20, 2015
Apr 26, 2022
1519 days past EOL
EOL
4.6.1
—
Nov 30, 2015
Apr 26, 2022
1519 days past EOL
EOL
4.6.2
—
Aug 2, 2016
Jan 12, 2027
203 days remaining
Active
4.7
—
Apr 5, 2017
TBD
Supported
Active
4.7.1
—
Oct 17, 2017
TBD
Supported
Active
4.7.2
—
Apr 30, 2018
TBD
Supported
Active
4.8
—
Apr 18, 2019
TBD
Supported
Active
4.8.1
—
Aug 9, 2022
TBD
Supported
Active
What does .NET Framework end of life mean for your organization?
When a version of .NET Framework reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL .NET Framework should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL .NET Framework versions. This is a bridge, not a permanent solution — plan your migration in parallel.
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Need Extended Support?
We work with vetted extended support vendors. Tell us what you need and we'll connect you with the right provider.
The next .NET Framework version reaching EOL is 4.6.2 on January 12, 2027. See the full table above for all version EOL dates.
When is the .NET Framework support end date?
The next .NET Framework support end date is January 12, 2027, when version 4.6.2 reaches end of support. Each version has its own support end date — see the table above for every version's date.
What is the latest supported version of .NET Framework?
The latest active version of .NET Framework is 4.8.1. Always verify against the table above as support windows can change.
What happens when .NET Framework reaches end of life?
When .NET Framework reaches end of life, the vendor stops issuing security patches. Any CVEs disclosed after the EOL date accumulate indefinitely with no patch path — creating an ever-growing attack surface that most vulnerability scanners do not flag.
How do I check if I'm running an EOL version of .NET Framework?
Check your current version against the table above. If your version's EOL date has passed, you are running unsupported software. You can also use the endoflife.ai Stack Scanner to check your entire dependency file at once.
Is there extended support available for EOL .NET Framework versions?
Some vendors offer extended support for EOL software. Contact the original vendor or check with enterprise support providers for options.